Steering device for skis



Aug. 6, 1929. FROHOLM 1,723,693

STEERING DEVICE FOR SKIS Filed March 13, 1928 Fig.1;

InVen for":

Patented Aug. 6, 1929. i

UNITED STATES PATENT OFFICE.

GABRIEL rnonoLM, or ans, NOB/WAY.

STEERING DEVICE FOR SKIS.

Application filed March 13, 1928, Serial No. 261,255, and in Norway March 19, 1927.

This invention relates to a device for use to the ski proper. It the curve is to extend in connection with snow ski and rendering to the right, the rail 6 of the right hand ski it possible to glide in curves without any is pressed correspondingly down upon the particular dii'liculty and skill. For this pursnow surface by means of the screw (l of 45 pose each of the two skis is provided. at its that shoe, it being imderstood that the leftouter side with a flat rail which. remains hand rail is then in its lifted position. located above the snow surface as long as The vertical. arm of the bracket h is the run proceeds straighttorward, but is eated outside oi the shoe and extends downlowered so as to contact with and penetrate wardly over the steering rail so as to guide 10 or cut into. the snow surface when a curve it vertically when it is moved by the is to be made. Either the right or the left screw (Z. rail is lowered according to whether the Under 'ircumstances the rails b may be curve is to extend to the right or to the left. used as braking means facilitating gliding The means for attaching the rails to the over an icy surface, and in such a case both 5 15 skis, as well as the means for moving them, rails are employed instead of only one.

may he of very different description. One I claim: :onstructio-nal form is shown diagrammati- 1. A steering device for a ski comprising, cally and by way of example on. the aecomin coniibination with the ski, a rail extending panying; drawing on which Figure 1 is a along at one side thereof and being supside-view of the respective arrangement and ported thereby, and constituting a doubleconibination oi parts, the ends of the ski armed lever, the trout arm of which is elasproper being broken away for want of space; tic, whereas the rear arm terms the steering Figure 2 is a plan of the parts shown in rail proper, a Ifivot secured to the ski proper Fig. l, and Figure 3 a vertical crosssebtion and serving as fulcrum for said doublein the plane III-III of Fig. 1. armed lever, and means provided at the rear These figures show the snow-ski tor the end of the rear lever-arm for moving it verlett foot. 7) denotes the control rail which tically, substantially as set forth. is arranged at the left side of the shoe; it is 9,. .A steering device for a ski, comprising, designed as a kind of double-armed lever in combination with the ski, a rail extending 30 which is t'ulcrumed upon the pivot 0 and the along at one side thereof and being hinged ifront arm of which forms a straight spring to it and vertically movable, and a screw 6, the free end of which engages an eye ,1 provided at the rear end of said rail and secured to the ski proper The main arm serves for moving it vertically, and a bracket 1) of the control rail is kept by the spring a formed by a rectangular member, the same in a position in which it does not contact being screwed to the shoe proper and. bearwith the snow surface, but this is the case ing said screw, and said. bracket extending when a screw cl provided near the rear end outwardly over the said rail and guiding of the rail is screwed down more or less, it vertically, substantially as set forth. corresponding to the radius of the curve in- In testimony whereof I affix my signature. tended. The screw (Z is located in the horizontal leg 9 of a bracket h affixed by screws 71 GABRIEL FROHOLM. 

